Fountain roll



c. BLOMGREN FOUNTAIN ROLL Aug, m, 1937.

3 Sheets-Sheet l Filed Jan. 50, 1954 Aug 16, 19370 c. BLOMGREN 2,089,331

I FOUNTAIN ROLL Filed Jan. 30, 1934 3 Sheets-Sheet 2 C. BLOMGREN FOUNTAIN ROLL Aug. 1%, 1937.,

s Sheet-Sheet 5 Filed Jan. 30, 1934 n .1 M N/ Patented Aug. 10, 1937 iJNl'i E-D STATES FOUNTAIN ROLL Carl Blomgren, Plainfield, N. J assignor to Wood Newspaper Machinery Corporation, New York, N. Y., a corporation of Virginia Application January 30, 1934, Serial No. 708,933

6 Claims.

The principal objects of this invention are to provide means by which a printing press can be run toprint three quarters or half the width of the ordinarywebwithout replacing the inking or other roll of the inking system or the employment of an ink regulating blade to prevent the inking of one or more pages in width of web and to provide a fountain roll built in sections, each of substantially one page width, provided with means whereby any number of them may be silenced or prevented from rotating for the purpose of delivering ink when the press is to be run with a narrow width web.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a diagrammatic end View of a printing press to which this invention may be applied;

Fig. 2 is a cross sectional elevation of an inking trough showing in side elevation, a preferred form of fountain roll made in accordance with this invention;

5 Fig. 3 is an enlarged sectional View of a part of the fountain roll;

Fig. 4 is a plan of the clutch shifting mechanism;

Fig. 5 is a sectional view of the fountain roll showing the members for clutching two sections together, and

Fig. 6 is a sectional view on the line 6-6 of Fig. 5.

In the printing of newspapers, sometimes it is necessary touse web rolls of different widths to provide the desired number of printed pages in the finished product. Usually full width four page paper rolls, three quarter roll and half rolls are used, most presses being built to accommodate full width rolls. When a narrow roll is to be used only a portion of the press is operated, of course. Certain types of inking systems are employed in which one of the inking rolls is made of the proper width to furnish ink only to those plates on the press which are being used to print the narrow width web. In using this system, it is necessary to change at least one of the inking rolls in each system when a different width of paper is to be employed, thus wasting a good deal of time.

A more convenient manner for cutting off one or more pages from the ink supply is to provide an auxiliary page width fountain blade, usually situated beneath the ink regulating blade. By pressing this blade against the fountain roll ink is prevented from being fed on that roll into posi-- tion to be taken up by the next roll for the particular page width that is omitted. A page out off in this nature is quite useful in inking systems similar to that employed in United States Pat- 5 ent No. 1,900,263.

In Fig. 1 the usual type of press and inking mechanism is shown, this invention not requiring any change in these features except as to one of the ink carrying rolls of the inking system. In 10 the case illustrated the fountain roll is composed of a number of sections, l 7 Hand 1 each of cylindrical form and each of one page width. The section lwhich is next to the end has Se;- cured to its ends by screws 6 two cover plates 15 9 and I0, also cylindrical, and with their peripheries flush with the outside surface in section l Thus a continuous cylindrical surface is provided. The outer races of two ball bearings II and I2 are also secured by these cover plates 20 9 and ID respectively. The end plate It also fits closely against a stationary bracket l3 which, along with a similar bracket l4, serves to support the two ends of a shaft I 5 which is the fountain roll shaft. 25

This shaft is mounted in ball bearings l6 and I! in the brackets l3 and [4 respectively. The inner race of bearing I6 is secured in place on the shaft I 5 by threaded nut l9. The inner races of the ball bearings II and I2, and a series of 30 similar ball bearings for the other sections of the fountain roll and the inner race of the ball bearing I1, are held in their proper positions by a series of spacers 20 and lock nuts 2| and 22 located at the opposite ends of the shaft l5. At one end a gear 23 is secured to the shaft l5 and is adapted to be driven from any convenient part of the press to operate in proportion thereto and drive the fountain roll.

The left hand end of the shaft I5 is provided 0 with a longitudinal hole for the insertion of a sleeve 24 and a rod 25 slidably mounted within the sleeve, the sleeve also being slidable. On the end of the sleeve 24 is secured a spool 26 cooperating with a yoke 21 which, by means of 45 a shaft 28, is pivotally mounted in the bracket l3. This provides means for shifting the sleeve longitudinally. The rod is shifted longitudinally by similar means comprising a spool 31 and yoke 36. 50

On the inside end of the sleeve 24 is secured a cross pin 29 which passes through a slot in the rod 25, so as to avoid restriction of the motion of the rod, and extends radially sufficiently to cooperate with radial slots 30 in the end plate 9. 55

All the sections, normally, are driven in a similar way.

It will be obvious that when the sleeve 24 and its pin 29 is in the position shown in Fig. 3 the motion of this sleeve to the right will disengage the pin 29 from the slots 30 and will rotate with the shaft in the space at the right of these slots and will no longer drive the end plate 9 or the section 1 A chain 3| is attached to the lower end of the yoke 2! and extends out through a hole in the stationary bracket l3 to a position under the fountain roll section l At this point it is connected with a spring 32, the other end of which is connected with a brake shoe arm 33. When the section is disconnected from the shaft IS the spring 32 automatically swings the brake shoe 33 up into contact with the surfaces of the section T thereby applying friction to prevent the section l from rotating and also the end plate l0.

In a similar manner, the rod 25 is provided with a cross pin 35 cooperating with a similar clutching device in the end plate on the left end of the section 1 Disconnection is accomplished through the operation of the yoke 36 and spool 31. A similar chain and brake shoe arrangement is used for placing a frictional drag on the section I when the drive is disconnected.

An opening is provided in the top of the bracket l3 through which a bar may be inserted in the holes provided in the yokes 27 and 36 to operate either of them. A similar construction is used for silencing the driving sections '3 and 1, those being clutched or unclutched from the right hand end of the shaft l5.

This constitutes a simple means for silencing a particular section or sections of the fountain or other roll and preventing the ink from being brought up through an ink motion which normally feeds into to a full width web. It avoids the waste of time required where one or more inking rolls of three quarter or half width have to be substituted for full width rolls and also avoids the necessity of using an auxiliary page width blade for taking the ink from a portion of the fountain roller and preventing the distribution of that ink.

Having thus described my invention and the advantages thereof I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. A fountain roll having a section thereof capable of disconnection from the rest of the roll so as not to rotate therewith and a brake for holding the freed section against rotation.

2. An ink carrying roll for an inking system formed of a plurality of sections, each one in contact with the next one and each one rotatable independently of any of the others, and means for preventing the rotation of an independently rotating section.

3. An ink carrying roll for an inking system consisting of a plurality of independent cylindrical sections located end to end and forming a continuous inking surface from end to end,

'and means for rendering one of them non-rotatable independently of the others.

4. An ink conveying roll for a newspaper printing press comprising a series of separate cylindrical members, each of a length. equal to the Width of a page of newspapers produced on said press, and flush with each other, said members being normally rotatable together, and a brake to prevent one from rotating with the others.

5. In an inking system for a printing press, the combination with a cylindrical shaft, of a plurality of cylinders, each individually connectable to said shaft and together constituting a continuous ink conveying cylinder, each being disconnectable individually from the shaft so as not to rotate with it, and a brake for stopping the disconnected cylinder or cylinders.

6. A fountain roll. made up of a plurality of separate sections and having a shaft on which they are rotatably mounted, a clutch by which one or more of said sections can be clutched to the shaft, means for unclutching some of said sections from the shaft, and means for holding the unclutched section against rotation.

CARL BLOMGREN. 

